This $300 ‘Toothbrush’ Is the Worst Thing I’ve Ever Shoved in My Mouth

" alt="Feno smart electric toothbrush">The Feno is supposed to brush all your teeth at once. But after using this "toothbrush" for three weeks, maybe just stick to your $5 manual brush.

https://gizmodo.com/this-300-toothbrush-is-the-worst-thing-ive-ever-shoved-in-my-mouth-2000601900